Influence of Potassium Fertilization on Certain Homopterous Insects Infestation and Relationship with Chemical Constituents and Cell Thickness of Maize Plants

Effect of Potassium Fertilization on The Main Piercing-Sucking Insect Species Infesting Maize Plants

“…These results are in agreement with the findings of Hegab and Hegab (2020) and Youssef (2006) which mentioned that there were significant differences between potassium fertilization levels on maize plants and mentioned that the highest mean number of aphids, leafhoppers and planthoppers recorded in the zero level of potassium fertilization The present results are in agreement with those obtained by Hashem (1997);El-Dafrawi et al (2000); El-Gindy (2002); Abdel-Samad and Al-Habashy (2013); El-Mashaly (2013); Awadalla et al (2017); Mansour (2017) and Elshyeb (2020) who mentioned that different aphid,leafhopper and planthopper insect species were collected from some vegetable and field crops with a great effect of host plant on infestation incidence by piercingsucking insects. Data represented in Table (3) show the average number of the main piercing -sucking insect pests (aphid, leafhopper and planthopper insects) that affected by the chemical constituents of the different potassium fertilized maize plants and the yield of crop wad also affected.…”

“…These results are in agreement with those of Hegab (2001); Hashem (2005); Youssef (2006); Awadalla et al (2013); Hegab (2015); Awadalla et al (2017); Mansour, (2017); El-Shyeb (2020). Hegab and Hegab (2020). They found that the chemical constituents of host plants have a great impact on infestation incidence by piercing-sucking insects and there were significant differences were obtained between the chemical constituents of the different fertilized field and vegetable crops and certain piercing-sucking insect infestations.…”

Influence of Potassium Fertilization on the Incidence of Sucking Insect Pests on Cucumber

“…This may explain the decrease in insect numbers with increasing rates of fertilization. Based on these findings, potassium fertilization is recommended as an effective component in IPM for maize (Ata et al, 2022;Hegab and Hegab, 2020), and barley (Elsamed and Eisa, 2017) In cucumber and squash increasing the amount of potassium fertilizer caused a reduction in the population density of A. gossypii, B. tabaci and Earias insulanain in cotton (Hegab and Hegab, 2009) Awad (2022) investigated the influence of potassium fertilizer and organic nutrient (Reef Amirich) on the population density of B. tabaci and T. tabaci. Results showed that potassium sulphate fertilization rates (50, 100 and 150 kg/ ha) and organic nutrient (0.8 and 1.6ml/ l) reduced the population of B. tabaci and T. tabaci.…”